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_ _ _ __ _ _ _ <br /> 610 North Hunter <br /> November 1997 <br /> Page 2 <br /> The required work plan should also include, at minimum one slant boring to assess the <br /> contamination which has migrated beneath the building, a scope of work for the vapor <br /> extraction and air sparge testing, and a well survey to identify nearby private or public wells. <br /> Please also include a waste handling plan, so that drums of contaminated wastes do not <br /> accumulate on site. <br /> Quarterly groundwater sampling of the existing monitoring wells should commence <br /> immediately and continue until such time as closure is granted. Samples should also undergo <br /> EPA Method 8260 analysis for oxygenates and be field filtered and undergo lead analysis. <br /> If you have any questions, comments or wish to schedule field inspections, please contact me at <br /> (209) 468-0337. <br /> Donna Heran, Director, REHS <br /> Environmental Health gDi�viisiioon.) <br /> V U <br /> Mary Meays, Senior REHS Margar Lagorio, REHS <br /> OA Site Mitigation Unit Supervisor <br /> cc: Pat Anderson, Central Valley Regional Water Quality Control Board <br /> cc: Martin Clark, State Water Resources Control Board Cleanup Fund Unit <br /> cc: Drew Van Allen, Smith Environmental Technology/ATC <br /> f <br /> i <br /> i' <br /> I! <br /> i� <br /> I� <br /> I <br />